The project alongside with the experiment we had once devoted so much time ______ perfectly.
#99849
A
to work out
B
to working out
C
to worked out
D
has worked out
推荐题目
 --Have the police found the parents of the baby found by the road? ---Not yet. His identity ______. 
#102907
A
would be found out
B
has been found out
C
is being found out
D
had been found out
 – He looks as if he _____the answer. --- He has.
#103671
A
has known
B
knows
C
had known
D
knew